CVE-2026-61541

Zapros, a Python HTTP client, prior to version 0.14.0 is vulnerable to denial of service when an application requests content from an untrusted server, or follows a redirect to one, because a malicious response containing an excessive number of chained `Content-Encoding` values causes Zapros to construct a deeply nested decompression chain that consumes excessive resources. Version 0.14.0 patches the vulnerability by limiting responses to five content-encoding layers and raising `DecodingError` when that limit is exceeded. As a workaround, applications can add response middleware that inspects the `Content-Encoding` header and rejects responses containing more than a safe number of encoding layers.

CVSS

No CVSS.

References

Link	Resource
https://github.com/kap-sh/zapros/security/advisories/GHSA-5vjj-2r48-q622

Configurations

No configuration.

History

21 Sep 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-21 22:16

Updated : 2026-09-30 17:32

NVD link : CVE-2026-61541

Mitre link : CVE-2026-61541

CVE.ORG link : CVE-2026-61541

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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